Good point. Considering the fact, that bishop of Cracow who invented Krakovian Orthography was illegitimate son of Popielid king of Poland thete is no way Polish orthography would look the same with different dynasty on the throne. Perhaps older spelling, with square letters for hard consonants and round letters for palatalized consonants and with letters borrowed from Greek alphabet to represent some of Polish fricative consonants would still be used? Imagine these weird letters in unicode.What's with all the mixed spelling? Can we use the Krakovian Orthography or not at all.
So:
Elžbieta or Elzzbieta
Długoš or Dlhugosz
Pliča or Plicza etc
If you only know the Anglicised alphabet just recall that a +h is a dash (´) and a +z a dip (ˇ). And you probably already know a tittle (˜) is a nasal.
[OOC: well of course the orthography will be different!]